JP2011154479A - Controller for image display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller for an image display apparatus, capable of suppressing the attitude change of the image display apparatus caused by an input operation to a touch panel. <P>SOLUTION: A screen angle detection means 100 detects a screen angle θ<SB>g</SB>, and an input area determination means 106 determines an input allowable area based on the screen angle θ<SB>g</SB>detected by the screen angle detection means 100 and determines an input area inside the input allowable area. Accordingly, a contact part by a stylus pen (an input operation element) 28 is restricted according to the screen angle θ<SB>g</SB>on a screen display face 18, so that it can be suppressed that the attitude of the image display apparatus 10 changes by the input operation to the touch panel 12. As a result, for example, erroneous input by the attitude change of the image display apparatus 10 hardly occurs. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to control of an input area in an image display device provided with a touch panel, which receives input from a stylus pen or the like on the image display surface.

  2. Description of the Related Art An image display device including a housing and a display device main body that is rotatably supported with respect to the housing is known. For example, the information processing apparatus of patent document 1 is it. In the information processing apparatus of Patent Document 1, the display device main body can be rotated between a closed position where the front surface covers the upper surface of the housing and an open position where the upper surface of the housing is exposed. . The information processing apparatus is displayed on a display unit provided on the front surface of the display device body according to an angle formed by the front surface of the display device body with respect to the reference surface with the upper surface of the housing as a reference surface. Change the orientation of the image.

JP 2005-92702 A

  In recent years, as a display unit of an image display device, a touch panel that can be input by a stylus pen or the like is often used. As the image display device, there is a device that a user uses in his / her hand, but a device which is used by being placed on a desk or the like is well known as the information processing device of Patent Document 1. In addition, in an image display device including a touch panel that is placed on a desk or the like and used, the tilt angle of the touch panel with respect to the placement surface of the image display device may be changeable. In an image display device equipped with such a touch panel, the entire image display device may change its position with respect to the above-mentioned mounting surface by contact with a stylus pen or the like during an input operation on the touch panel. Input could occur. For example, as the display surface of the touch panel approaches an upright position in relation to the placement surface described above, or as the contact location by a stylus pen or the like is closer to the upper end of the display surface, the posture change of the entire image display device due to the input operation is It is thought that it becomes easy to occur. Therefore, it is conceivable to change the input area of the touch panel according to the tilt angle of the touch panel so that the posture change is less likely to occur.

  However, even if it is attempted to change the input area of the touch panel as described above according to the tilt angle of the touch panel using, for example, the information processing apparatus of Patent Document 1, the information processing apparatus of Patent Document 1 is originally provided. Since the display device body is not a touch panel, this could not be realized.

  The present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a control device for an image display device that can suppress the posture of the image display device from being changed by an input operation on the touch panel. It is to provide.

  In order to achieve such an object, the gist of the invention according to claim 1 is that (a) a touch panel that displays an image and detects that an input operator operated by a user has touched the image display surface; A control device for an image display device, comprising a touch panel support unit that fixes a screen angle formed by the image display surface with respect to the placement surface and supports the touch panel, and (b) a screen that detects the screen angle. An angle detection unit; and (c) an input allowable region capable of setting an input region for receiving input by the input operator within the range of the image display surface based on the screen angle detected by the screen angle detection unit. And an input area determining means for determining the input area within the input allowable area.

  The gist of the invention according to claim 5 is that: (a) a touch panel that displays an image and detects that an input operator operated by a user has touched the image display surface; and the image display surface includes: For an image display device having a touch panel support unit that supports a touch panel and fixes a screen angle with respect to the placement surface, an input area for receiving input by the input operator is determined within the range of the image display surface. And (b) the image display device has a screen angle detection means for detecting the screen angle, and (c) the screen angle detected by the screen angle detection means. And determining an input allowable area where the input area can be set based on the input area and determining the input area within the input allowable area. And an image based on the determined input region lies in having a server to be displayed on the touch panel.

  According to the control device for an image display device of the first aspect of the invention, the screen angle detection unit detects the screen angle, and the input area determination unit determines the screen angle detected by the screen angle detection unit. The input allowable area is determined based on the input allowable area, and the input area is determined within the input allowable area. Therefore, the contact location by the input operator on the image display surface is limited according to the screen angle, and it is possible to suppress a change in the posture of the image display device due to the input operation on the touch panel. As a result, for example, erroneous input due to a change in posture of the image display device is less likely to occur.

  Here, preferably, the input area determining means increases the upper end position of the input area as the screen angle is smaller with a predetermined lower limit position as a lower limit. In this way, the posture change of the image display device due to the input operation on the touch panel is less likely to occur as the screen angle is smaller. Therefore, the input operation is performed on the touch panel while ensuring the wide input area while suppressing the posture change. Can be made easier. In addition, since the lower limit position is set, it is possible to avoid the input area from becoming too narrow in performing an input operation on the touch panel.

  Preferably, the input area determining means sets the upper end position of the input allowable area as the upper end position of the image display surface when the screen angle is equal to or smaller than a predetermined screen angle determination value. In this way, the screen angle is reduced, and, for example, when the input operation on the touch panel is performed, any change in the posture of the image display device is unlikely to occur regardless of the contact location by the input operator on the image display surface. In such a case, the input area is secured as wide as possible. As a result, the operability at the time of input operation on the touch panel can be improved.

  Preferably, (a) the touch panel support unit is connected to a main body unit including the touch panel at an angle corresponding to the screen angle, and supports the touch panel by contacting the mounting surface. Yes, (b) The input area determination means sets the upper end position of the input allowable area to be equal to or higher than the height indicated by the connection portion of the main body portion with the touch panel support portion when the screen angle is maximum. In this way, it is possible to moderately suppress a change in the attitude of the image display device due to an input operation on the touch panel.

  According to the image display device control system of the invention according to claim 5, (a) an image display device having the touch panel and the touch panel support unit includes a screen angle detection unit that detects the screen angle; (B) The server determines an input allowable area in which the input area can be set based on the screen angle detected by the screen angle detection means, and determines an input area within the input allowable area. Since an image based on the determined input region is displayed on the touch panel, the input is performed on the image display surface in the same manner as the control device for the image display device according to the first aspect. The contact location by the operator is limited according to the screen angle, and the attitude of the image display device changes due to the input operation on the touch panel. It is possible to suppress. As a result, for example, erroneous input due to a change in posture of the image display device is less likely to occur.

  Preferably, the input area determining means sets the higher one of the first height set in advance and the predetermined second height as the screen angle is smaller as the upper end position of the input allowable area. For example, the touch panel support unit supports the touch panel by being connected to the main body unit at an angle corresponding to the screen angle, and the input area determination unit is far from the touch panel of the touch panel support unit. The contact point at which the front end contacts the mounting surface of the image display device is determined, and the height indicated by the intersection of the perpendicular of the image display surface passing through the contact point and the image display surface is defined as the first height. . In this way, by detecting the screen angle, the orientation of the image display device can be changed by the input operation on the touch panel while avoiding the reduction of the input area so that the input operation on the touch panel becomes difficult. It is possible to suppress.

It is a side view showing the external appearance of the image display apparatus provided with the touch panel to which this invention is applied suitably. It is the front view of the image display apparatus seen in the II direction in FIG. It is sectional drawing of the image display apparatus seen in the III-III direction in FIG. In the image display device of FIG. 1, when the screen angle sensor for detecting a screen angle is an acceleration sensor, it is a figure for demonstrating the detection principle. It is a figure for demonstrating the installation place of the acceleration sensor of FIG. In the image display apparatus of FIG. 1, when the screen angle sensor for detecting a screen angle is a potentiometer, it is a figure for demonstrating the detection principle. It is a figure for demonstrating the installation place of the potentiometer of FIG. It is a schematic side view for demonstrating the structure of the image display apparatus different from the image display apparatus shown in FIG. FIG. 2 is a block diagram illustrating an electrical configuration of the image display device in FIG. 1. FIG. 2 is a functional block diagram of Embodiment 1 for explaining a main part of a control function provided in a CPU that is a control device of the image display device in FIG. 1. FIG. 2 is a first diagram for explaining how to determine an input allowable area in the image display device of FIG. 1 and shows a side view of the image display device. FIG. 5 is a second diagram for explaining how to determine the input allowable area in the image display device of FIG. 1 and shows a side view of the image display device. In the image display device of FIG. 1, a diagram showing a specific example of an input area determined based on a screen angle, taking as an example the case where one stylus input area and two icon areas are included as input areas in the display content It is. In the image display device of FIG. 1, a diagram showing a specific example of an input area determined based on a screen angle, taking as an example the case where one stylus input area and two icon areas are included as input areas in the display content It is a figure which shows the case where a screen angle is smaller than FIG. In the image display device of FIG. 1, a diagram showing a specific example of an input area determined based on a screen angle, taking as an example the case where one stylus input area and two icon areas are included as input areas in the display content It is a figure which shows the case where a screen angle is smaller than FIG. In the image display device of FIG. 1, a diagram showing a specific example of an input area determined based on a screen angle, taking as an example the case where one stylus input area and two icon areas are included as input areas in the display content It is a figure which shows the case where a screen angle is smaller than FIG. The main part of the control operation of the CPU provided in the image display apparatus of FIG. 1, that is, the control operation in which the display content displayed on the display device is updated according to the screen angle of the touch panel is described. It is a flowchart. It is a flowchart for demonstrating the control action performed by SA3 of FIG. It is a figure of Example 2 showing the outline | summary of the image display apparatus control system of this invention. It is a functional block diagram of Example 2 for demonstrating the principal part of the control function with which the server of FIG. 19 was equipped. FIG. 20 is a functional block diagram of Example 2 for explaining a main part of a control function provided in the image display device of FIG. 19. In the image display device control system of FIG. 19, the image display device receives that there are two links from the server, and is received from the character input region, which is one stylus input region, two link regions, and the server. The input determined based on the screen angle, taking as an example the case where the browser display area, which is a non-input display area for displaying information such as characters, is included in the display content displayed on the display device of the image display device It is the figure which showed the specific example of the area | region. In the image display device control system of FIG. 19, the image display device receives that there are two links from the server, and is received from the character input region, which is one stylus input region, two link regions, and the server. The input determined based on the screen angle, taking as an example the case where the browser display area, which is a non-input display area for displaying information such as characters, is included in the display content displayed on the display device of the image display device It is the figure which showed the specific example of the area | region, and is a figure which shows the case where a screen angle is smaller than FIG. In the image display device control system of FIG. 19, the image display device receives that there are two links from the server, and is received from the character input region, which is one stylus input region, two link regions, and the server. The input determined based on the screen angle, taking as an example the case where the browser display area, which is a non-input display area for displaying information such as characters, is included in the display content displayed on the display device of the image display device It is the figure which showed the specific example of the area | region, and is a figure which shows the case where a screen angle is smaller than FIG. In the image display device control system of FIG. 19, the image display device receives that there are two links from the server, and is received from the character input region, which is one stylus input region, two link regions, and the server. The input determined based on the screen angle, taking as an example the case where the browser display area, which is a non-input display area for displaying information such as characters, is included in the display content displayed on the display device of the image display device It is the figure which showed the specific example of the area | region, and is a figure which shows the case where a screen angle is smaller than FIG. 19 is a flowchart of a second embodiment for explaining a main part of the control operation of the image display device control system of FIG. 19, that is, a control operation in which display content displayed on the image display device is updated according to the screen angle of the touch panel. is there. It is a flowchart for demonstrating the control action performed by SC10 of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view illustrating an appearance of an image display device 10 including a touch panel to which the present invention is preferably applied. FIG. 2 is a front view of the image display device 10 viewed in the II direction in FIG. FIG. 3 is a cross-sectional view of the image display device 10 viewed in the III-III direction in FIG. The image display device 10 is an electronic device that is placed on a horizontal placement surface 8 such as a desk and performs input / output by a touch panel operation. The image display device 10 includes a main body 20 including a touch panel 12 and the touch panel 12, that is, the main body. And a touch panel support portion 22 that supports when 20 is placed on a desk or the like.

  The main body 20 is made of the touch panel 12 and a material such as ABS resin or aluminum alloy, forms the outer shape of the main body 20, and displays a display surface 18 such as an image displayed on the touch panel 12 (hereinafter referred to as “image display surface 18”). And a predetermined menu screen for function selection provided on the front outer periphery of the main body 20 that is outside the image display surface 18 is displayed on the touch panel 12. And a menu button 26 (see FIG. 2).

  The touch panel 12 is a touch panel display device that is generally known as an input / output device for a user. The touch panel 12 is a display device 14 that displays images, characters, and the like, and an input operator that is operated by the user of the image display device 10. The stylus pen 28 (see FIG. 3) is in contact with the image display surface 18 and the display surface contact detection device 16 that detects that it is in contact. The touch panel 12 includes a display surface contact detection device 16 and a display device 14 which are integrally formed in a layered manner from the image display surface 18 side. The touch panel 12 may detect the contact of the stylus pen 28 with the image display surface 18 by any method such as a resistive film method, a capacitance method, an ultrasonic surface acoustic wave method, and an infrared light shielding method. In the example, the resistive film method is adopted.

  The display device 14 is, for example, a liquid crystal display device or an organic EL display, and displays an image, characters, or the like on the image display surface 18 in accordance with an input signal. The maximum image display range on which the display device 14 displays images, characters, and the like is surrounded by the range of the image display surface 18, that is, the upper end 32, the side ends 34 and 38, and the lower end 36 of the image display surface 18 shown in FIG. It is a range (display area).

  The display surface contact detection device 16 is a transparent thin sheet-like pressure sensor, for example, and is integrally attached to substantially the entire surface of the display device 14 on the image display side. Then, when the stylus pen 28 contacts the image display surface 18, the display surface contact detection device 16 detects the contact of the stylus pen 28 and indicates a position on the image display surface 18 where the contact is detected. Output a signal.

  As shown in FIG. 1, one end of the touch panel support portion 22 is connected to a connection portion 42 provided on the opposite side to the image display surface 18 side, that is, the back side of the main body portion 20. When the image display device 10 is placed on the placement surface 8 (desktop or the like), the other end (support point) 44 of the touch panel support portion 22 and the lower end of the main body portion 20 are in contact with the placement surface 8. Then, the image display device 10 is placed on the placement surface 8. The connection portion 42 is a rotation fulcrum portion in which the touch panel support portion 22 is connected to be rotatable about a horizontal axis (horizontal axis) parallel to the image display surface 18 passing through the connection portion 42 as indicated by an arrow AR01 in FIG. It functions as (the center of rotation of the touch panel support 22), and the touch panel support 22 can be fixed to the main body 20 at an arbitrary angle by screwing or a ratchet mechanism. In this way, the touch panel support unit 22 is fixed by the connection unit 42, so that the touch panel support unit 22 fixes the screen angle θg formed by the image display surface 18 with respect to the placement surface 8 and the main body unit 20 (touch panel 12). ) Can be supported. That is, as can be seen from FIG. 1, the touch panel support portion 22 supports the touch panel 12 by being connected and fixed to the main body portion 20 at the connection portion 42 at an angle corresponding to the screen angle θg. The adjustment range of the screen angle θg is predetermined.

  The image display device 10 includes a screen angle sensor 48 for detecting the screen angle θg. Although it does not specifically limit as the screen angle sensor 48, For example, an acceleration sensor (MEMS sensor), a potentiometer, etc. can be considered. In other words, either the acceleration sensor or the potentiometer is provided in the image display device 10 as the screen angle sensor 48. FIG. 4 is a diagram for explaining the detection principle when the screen angle sensor 48 is an acceleration sensor, and FIG. 5 is a diagram for explaining the installation location of the acceleration sensor.

  As shown in FIG. 4, if the gravitational acceleration downward in the vertical direction is “g”, the acceleration exerted by gravity in the vertical direction with respect to the plane inclined by the angle θ from the horizontal plane is “g × cos θ”, which is parallel to the plane. The direction is “g × sin θ”. That is, the angle θ can be detected by detecting the acceleration. Therefore, when the screen angle sensor 48 is an acceleration sensor, the screen angle sensor 48 detects acceleration in a direction perpendicular or parallel to the image display surface 18, for example, as indicated by a01 in FIG. Provided in the main body 20. Further, since the support portion angle formed by the touch panel support portion 22 with respect to the horizontal plane has a one-to-one correspondence with the screen angle θg, the screen angle sensor (acceleration sensor) 48 is provided not on the main body portion 20 but on the touch panel support portion 22. (Refer to a02 in FIG. 5). In such a case, the screen angle θg is calculated from the support portion angle.

  Next, an example in which the screen angle sensor 48 is a potentiometer will be described. FIG. 6 is a diagram for explaining the detection principle when the screen angle sensor 48 is a potentiometer, and FIG. 7 is a diagram for explaining the installation location of the potentiometer. FIG. 6A is a left side view as seen from the left side in FIG. 6B.

  As shown in FIG. 6, the screen angle sensor 48, which is a potentiometer, includes a stator 52 on one axis CL1, a shaft 54 rotatable with respect to the stator 52, and a rotor 56 fixed to the shaft 54. It has. In the potentiometer, when the shaft 54 and the rotor 56 rotate with respect to the stator 52 as indicated by arrows AR02 and AR03, the magnetic field or electric resistance changes. The screen angle sensor 48, which is a potentiometer, can detect the angle at which the shaft 54 and the rotor 56 are rotated with respect to the stator 52 from the magnetic field or electrical resistance that changes in accordance with the rotation. Therefore, when the screen angle sensor 48 is a potentiometer, the screen angle sensor 48 is provided in the connecting portion 42 as shown in FIG. In the connection portion 42, the shaft 54 is disposed coaxially with the rotation axis of the touch panel support portion 22, one of the shaft 54 and the stator 52 is fixed to the touch panel support portion 22, and the other is fixed to the main body portion 20. .

  In the above-described image display device 10 shown in FIG. 1, the touch panel support portion 22 rotates around the connection portion 42 as a rotation center, but the relationship between the other main body portion 20 and the touch panel support portion 22 can also be considered. An example is shown in FIG.

  FIG. 8 is a schematic side view for explaining the configuration of an image display device 70 different from the image display device 10 shown in FIG. FIG. 8A shows a state in which the screen angle θg is almost vertical within a predetermined adjustment range, that is, a state when the screen angle θg is maximum within the adjustment range, and FIG. FIG. 8 shows a state in which the screen angle θg is made smaller than that in FIG. In FIG. 8A, the angle formed by the straight line L22 passing through one end and the other end of the first touch panel support 71 with the image display surface 18 is a right angle. As shown in FIGS. 8A and 8B, the image display device 70 includes a main body unit 20, a first touch panel support unit 71, and a second touch panel support unit 78, and the first touch panel support unit 71 and the second touch panel support unit 78. The touch panel support part 78 corresponds to the touch panel support part of the present invention.

  The second touch panel support portion 78 is a plate-like member placed in parallel with the placement surface 8, and the lower end of the main body portion 20 is rotatably connected to one end thereof, The other end 72 of the first touch panel support 71 is pivotably connected.

One end of the first touch panel support portion 71 is connected to the back side of the main body portion 20, and the connection portion 74 can be shifted upward along the back surface of the main body portion 20 from the state of FIG. It is possible. And the connection part 74 can be fixed by screwing etc. in the arbitrary positions of the main-body part 20 back surface. That is, the image display device 70 has a structure in which the screen angle θg decreases as the connecting portion 74 is shifted upward from the state of FIG. 8A along the back surface of the main body portion 20. For example, as shown by an arrow AR04 in FIG. 8A, the first touch panel support portion 71 is rotated and the connection portion 74 is shifted upward along the back surface of the main body portion 20 to be fixed. Is the state of FIG. 8B in which the screen angle θg is reduced. In the image display device 70, the height indicated by the connecting portion 74 at the time when the screen angle θg is within the predetermined adjustment range is “H _X ” shown in FIG. In this embodiment, the image display device 10 shown in FIG. 1 will be described unless otherwise specified. However, the image display device 70 shown in FIG. 8 is also used in FIGS. 10, 17, 18, and the like. The method described below can be applied similarly to the image display device 10 of FIG.

  FIG. 9 is a block diagram illustrating an electrical configuration of the image display device 10. As shown in FIG. 9, in addition to the touch panel 12 and the like, the image display device 10 has a CPU 80, a RAM 82, a ROM 84, and a recording medium such as a CD-ROM or a magnetic disk as a central processing unit. A reading / writing device 86 that reads a program or the like and writes data or a program to the recording medium, and a bus 88 that mediates data exchange between these components are provided.

  The CPU 80 is a control device for controlling the image display device 10, and is a so-called computer that processes and controls electronic information based on a program stored in advance in a part of the ROM 84 while using the temporary storage function of the RAM 82. It is a control unit. For example, the CPU 80 displays a predetermined initial image of the image display device 10 on the display device 14 when the user turns on the power switch, or displays the electronic mail function, the browser function, and the like of the image display device 10. A predetermined image based on the function is displayed on the display device 14, a predetermined function is executed based on the pen contact detection position signal from the display surface contact detection device 16, and a display image on the display device 14 is switched. 12 performs so-called handwritten input to the display device 14 and displays the handwritten image on the display device 14. The program may be read in advance by the read / write device 86 from a recording medium such as a CD-ROM on which the program is recorded.

  For example, when displaying an image or the like on the display device 14, the CPU 80 displays an image or the like without accepting input from the stylus pen 28 within the range of the image display surface 18, that is, within the maximum image display range of the display device 14. A non-input display area to be input, an input area for receiving input by the stylus pen 28, and the like are set, and the display device 14 displays the non-input display area and an image corresponding to the input area. As the non-input display area, for example, when a browser function is selected, there is a browser display area in which characters or the like are displayed by the function, and for example, information from the server is displayed in the browser display area. The Further, as the input area, a stylus input area (handwriting input) for displaying a contact locus of the stylus pen 28 on the image display surface 18 on the display device 14 and recognizing a character or a figure from the contact locus and receiving it as an input. Area) and an icon image are displayed on the display device 14, and when contact with the image display surface 18 of the stylus pen 28 is detected within the display range corresponding to the icon image, a predetermined function or the like is selected. Icon area.

  FIG. 10 is a functional block diagram for explaining the main part of the control function provided in the CPU 80 which is the control device of the image display device 10. As shown in FIG. 10, the CPU 80 includes a screen angle detection unit 100, a display content update determination unit 102, a display content reading unit 104, an input area determination unit 106, and a screen display unit 108.

  The screen angle detection means 100 detects the screen angle θg from the signal of the screen angle sensor 48. Since the screen angle θg may be changed by rotating the touch panel support portion 22 with respect to the main body portion 20, the screen angle detection unit 100 functions as a screen angle change determination unit. It is also determined whether or not the screen angle θg has been changed.

  The display content update determination unit 102 determines whether or not the display content displayed on the display device 14 is updated. For example, when the contact with the image display surface 18 is detected in the icon area, the display content is switched. At that time, the display content update determination unit 102 displays the display content displayed on the display device 14. Is determined to be updated.

  The display content reading unit 104 reads display content to be displayed on the display device 14. For example, it is read from a ROM 84 or a hard disk. For example, when the image display device 10 is turned on, the display content reading unit 104 reads display content for an initial screen that is set in advance to be displayed when the device is activated. In addition, when the display content update determining unit 102 determines that the display content is updated, the display content reading unit 104 reads the updated display content. For example, the display content read by the display content reading means 104 includes an image to be displayed with the position and size of the non-input display area, and an image to be displayed with the position and size of the input area.

  Further, the display content reading means 104 includes an input area presence determination means 110, and the input area presence determination means 110 determines whether or not the input area exists in the read display content, in other words, the display content. It is determined whether or not the input area is included. That is, it is determined whether or not the input area exists on the image display surface 18.

  The input area determination unit 106 determines the input area based on the screen angle θg detected by the screen angle detection unit 100. Specifically, the input area determining means 106 determines an input allowable area in which the input area can be set within the range of the image display surface 18 based on the screen angle θg, and at the same time, determines the input area as the input allowable area. To be determined within. The input area determination means 106 includes an input allowable area determination means 112 and an input area reduction determination means 114, which will be described later, in order to determine an input area. Specifically, determining the input area includes determining the position and size of the input area included in the display content read by the display content reading means 104. When the input area existence determining means 110 determines that the input area exists in the display content, the input area determining means 106 determines the input allowable area and the input area decide. If the non-input display area is included in the read display content, the input area determination means 106 determines the non-input display area on the image display surface 18 when determining the input area. After ensuring within the range, the input area is arranged outside the non-input display area. Note that the input area determination unit 106 newly reads the display content to be displayed on the display device 14 by the display content reading unit 104 or when the screen angle detection unit 100 determines that the screen angle θg has been changed. The input area is preferably determined.

Determination of the input allowable area will be described with reference to FIGS. The input permissible area is an area where the input area can be set as described above. If the input display area 18 is in contact with the image display surface 18 such as the stylus pen 28 in the input permissible area, the image display device 10 changes its posture. Is determined as a stable input region that is considered to be capable of a stable input operation. The input allowable area determination unit 112 determines the input allowable area within the range of the image display surface 18 based on the screen angle θg. Specifically, as shown in FIG. 11, the input allowable region determination unit 112 is configured to display the image display surface from the contact point of the other end (support point) 44 of the touch panel support unit 22, that is, the placement surface 8 of the touch panel support unit 22. obtain the intersection P01 with its perpendicular line and the image display surface 18 when minus perpendicular line 18, to calculate a first height H _P indicated by the intersection point P01. A first height H _P can be calculated as a function of screen angle θg As seen from FIG. 11. Then, the input allowable area determining unit 112 is configured to experimentally set the minimum upper end height (in advance) of the input allowable area so that the posture change is difficult to occur during the input operation of the image display device 10 and the input operation is not difficult. Second height) H _X is stored, and the first height _HP and the second height H _X are compared. For example, in the present embodiment, as shown in FIG. 12, the second height H _X is the maximum when the screen angle θg is within a predetermined adjustment range, and the connection portion 42 (the center of rotation of the touch panel support portion 22). It is the height indicated. Input allowed region determining means 112, a result of comparison with the first height H _P and a second height H _X, the input position of the higher of the first height H _P and the second height H _X Set as the upper end position of the allowable area. That is, the input permissible area determination unit 112 sets the range of the image display surface 18 below the upper end position with the higher position of the first height _HP and the second height H _X as the upper end position. Determined as an input allowable area. Since the input allowable area is determined in this way, the upper end position of the input allowable area is not set lower than the second height H _X , that is, the input allowable area determining means 112 does not change the second allowable area. It can be said that the upper end position of the input allowable area is set to the height H _X or more. In FIG 11 and FIG 12, the first height H _P and the second height H _X is illustrated as the height from both the mounting surface 8, the two H _P, of H _X reference If the positions are common, the height from the placement surface 8 is not necessarily limited.

The input allowable area determining means 112 basically determines the input allowable area from the first height H _P and the second height H _{X as} described above. When the screen angle θg becomes small to some extent, the image display screen Even if the stylus pen 28 or the like touches at any position within the range of 18, the image display device 10 is unlikely to change its posture. Therefore, when the screen angle θg is equal to or smaller than the predetermined screen angle determination value θ1g, the input allowable region determination unit 112 determines the upper end position of the input allowable region as the upper end position (the upper end 32 of the upper end 32). Position). That is, the input allowable area is the maximum image display range of the display device 14, in other words, the entire display area of the display device 14. The screen angle determination value θ1g may be the screen angle θg when the intersection P01 shown in FIG. 11 coincides with the upper end position of the image display surface 18, or the stylus pen 28 at the upper end position of the image display surface 18. The screen angle θg obtained experimentally can be determined that it is difficult to cause a change in the posture of the image display device 10 even if the contact is made by an input operation.

  The input area determining means 106 is input from a reference size that is determined in advance so that the input area falls within the input allowable area after the input allowable area determining means 112 determines the input allowable area as described above. Decrease the area. For this purpose, the input area reduction determination unit 114 first determines whether or not the input area does not need to be reduced from the reference size in order to fit the input area in the input allowable area. That is, it is determined whether or not the input allowable area is larger than the input area of the reference size. If there are a plurality of the input areas in the display content read by the display content reading means 104, the input allowable area is larger than the entire plurality of input areas arranged within the range of the image display surface 18. Determine whether or not. Here, the reference size of the input area is the size of the input area in which the size of the input area is set as the reference size and the input area is determined if there is no restriction to fit within the input allowable area. For example, each input area is experimentally set to the most appropriate size for input operation. In other words, the reference size of the input area is the maximum size of the input area determined by the input area determining means 106.

  When the input area reduction determining unit 114 determines that the input allowable area is larger than the input area of the reference size, the input area determining unit 106 does not need to reduce the input area from the reference size. The input area is arranged and determined with the reference size within the input allowable area. The same applies when the input allowable area is the same size as the input area of the reference size. The arrangement of the input area follows the display content read by the display content reading means 104, for example.

On the other hand, when the input area reduction determining unit 114 determines that the input allowable area is smaller than the input area of the reference size, the input area determining unit 106 fits the input area within the input allowable area. The input area is determined by being reduced from the reference size. That is, as described with reference to FIGS. 11 and 12, the upper end position of the input allowable area is set to be higher as the screen angle θg is smaller with the second height H _X as a lower limit. Means that the upper end position of the input area becomes higher as the screen angle θg is smaller with the predetermined lower limit position (second height H _X ) being the lower limit. When the input area determination unit 106 reduces the input area, for example, when there are a plurality of input areas, the input areas of the reference size included in the display content read by the display content reading unit 104 The mutual interval is also reduced at the same rate. Further, since the input allowable area limits the height of the input area on the image display surface 18, for example, the input area determining means 106, when reducing the input area, Only the dimension in the height direction may be reduced, or the input area may be reduced at the same aspect ratio.

  However, as described above, the input area determining means 106 reduces the input area so as to be within the input allowable area, but the input area has a predetermined minimum size, and the input area determining means 106 does not reduce the input area to be smaller than the minimum size. For this purpose, the input area determining means 106 reduces the input area from the reference size so that the input area falls within the input allowable area, and determines whether the reduced input area is smaller than the minimum size. . If the reduced input area is not smaller than the minimum size, the reduced input area is arranged and determined in the input allowable area. On the other hand, the reduced input area may be smaller than the minimum size. For example, when there are a plurality of input areas included in the display content, the reduced input area may be smaller than the minimum size. When the reduced input area is smaller than the minimum size, the input area determination means 106 determines and arranges the input area within the input allowable area as much as possible with the minimum size instead of the reduced size. . At that time, since an input area that cannot be arranged is generated, the input area determination unit 106 replaces the input area arranged on the image display surface 18 with the input area that is not arranged together with the input area of the minimum size. The rearrangement button area is also arranged in the input allowable area. In the rearrangement button area, the corresponding rearrangement button image is displayed. When contact with the stylus pen 28 is detected, the input area currently displayed on the image display surface 18 is sequentially replaced with a non-display input area. . The minimum size of the input area is experimentally set to a minimum size that does not make it difficult to perform an input operation on each input area, for example.

  When the input area determination means 106 determines the input area as described above, the screen display means 108 displays an image corresponding to the input area determined by the input area determination means 106, for example, a reduced input area, in other words, An image based on the input area is displayed on the display device 14. For example, an image corresponding to an input area is the icon image if the input area is the icon area, and an image indicating the area if the input area is the stylus input area (handwriting input area). It is an image such as a frame.

  Further, if the non-input display area is included in the display content read by the display content reading means 104, the screen display means 108 corresponds to the non-input display area together with the image corresponding to the input area. An image is also displayed on the display device 14. For example, the image corresponding to the non-input display area is a character, a figure, or the like displayed in the non-input display area.

FIGS. 13 to 16 show specific examples of input areas determined by the respective screen angles θg, taking as an example the case where one of the stylus input areas and two of the icon areas are included in the display content as the input areas. FIG. In order from FIG. 13 to FIG. 16, the screen angle θg decreases. 13 to 16, the broken line L01 indicates the first height H _P (see FIG. 11), and the solid line L02 indicates the second height H _X (see FIG. 12). “ICN1, ICN2” indicates the icon area, “Ain” indicates the stylus input area, and “BNc” indicates the rearrangement button area. 13-16, (a) figure is the left view seen from the left horizontal direction in (b) figure.

In the case shown in FIG. 13, since the second height H _X (solid line L02) is higher than the first height H _P (broken line L01), the second height H _X is the upper end of the input allowable area. Position. When the input area is reduced so that the input areas (icon areas ICN1, ICN2) fall within the input allowable area, the icon areas ICN1, ICN2 become smaller than the predetermined minimum size. The icon area ICN1 is reduced to a minimum size, for example, and arranged in the input allowable area. At the same time, the stylus input area Ain is arranged to be reduced from the reference size in the input allowable area, and the rearrangement button area BNc is also arranged in the input allowable area.

In the case shown in FIG. 14, the allowable input area is larger than in the case shown in FIG. 13, and the first height H _P (broken line L01) is higher than the second height H _X (solid line L02). since, the first height H _P is the upper end position of the input allowable region. The input areas (icon areas ICN1, ICN2) are arranged by being reduced from the reference size so as to be within the input allowable area. Further, the stylus input area Ain is arranged in a reduced size from a reference size in the input allowable area. In the case shown in FIG. 14, even if the input area is reduced so that the input area (icon areas ICN1, ICN2) falls within the input allowable area, the icon areas ICN1, ICN2 are smaller than the minimum size. Must not. Therefore, the rearrangement button area BNc is not arranged in the input allowable area.

In the case shown in FIG. 15, the input allowable area is larger than in the case shown in FIG. 14, and the first height H _P (broken line L01) is higher than the second height H _X (solid line L02). since, the first height H _P is the upper end position of the input allowable region. Then, even if the icon areas ICN1, ICN2 and the stylus input area Ain, which are all input areas, are arranged within the allowable input area with the respective reference sizes, they are within the allowable input area. Since the input allowable area is larger than the entire input areas ICN1, ICN2, and Ain, all the input areas ICN1, ICN2, and Ain are arranged in a reference size within the input allowable area.

  In the case shown in FIG. 16, the screen angle θg is smaller than in the case shown in FIG. 15, and the screen angle θg is equal to or less than the screen angle determination value θ1g. Therefore, the input allowable area is the maximum image display range of the display device 14. Therefore, all the input areas ICN1, ICN2, and Ain are not reduced by the input allowable area, and are arranged within the range (maximum image display range) of the image display surface 18 with the respective reference sizes.

  FIG. 17 is a flowchart for explaining the main part of the control operation of the CPU 80, that is, the control operation in which the display content displayed on the display device 14 is updated in accordance with the screen angle θg of the touch panel 12. The control operation shown in FIG. 17 is executed alone or in parallel with other control operations. For example, the flowchart of FIG. 17 is started when the power of the image display device 10 is turned on and the image display device 10 is activated. FIG. 18 is a flowchart for explaining the control operation executed in SA3 of FIG.

  First, in step (hereinafter, “step” is omitted) SA1 corresponding to the display content reading means 104, display content to be displayed on the display device 14 is read.

  In SA2 corresponding to the input area presence determination unit 110, it is determined whether or not the input area exists on the image display surface 18 from the display content read in SA1. That is, it is determined whether or not the input area is included in the display content. If the determination of SA2 is affirmative, that is, if the input area exists, the process proceeds to SA3. On the other hand, if the determination at SA2 is negative, the operation proceeds to SA4.

  In SA3, the arrangement and size of the input area on the image display surface 18 are changed according to the screen angle θg. Specifically, the flowchart of FIG. 18 is executed.

  In SB1 of FIG. 18, the screen angle (screen display angle) θg is detected from the signal of the screen angle sensor 48. This SB1 corresponds to the screen angle detection means 100.

In SB2 corresponding to the input allowable area determining means 112, the input allowable area is determined based on the screen angle θg detected in SB1. Specifically, the higher position of the first height H _P (see FIG. 11) calculated based on the screen angle θg and the predetermined second height H _X (see FIG. 12) is the above-described position. It is set as the upper end position of the input allowable area. However, when the screen angle θg is equal to or smaller than the screen angle determination value θ1g, the upper end position of the input allowable area is the upper end position (the position of the upper end 32) of the image display surface 18. That is, in this case, the input allowable area is the maximum image display range of the display device 14.

  In SB3 corresponding to the input area reduction determination means 114, it is determined whether or not the input area does not need to be reduced from the reference size in order to fit the input area in the input allowable area. That is, it is determined whether the input allowable area is larger than the input area of the reference size. If the determination of SB3 is affirmative, that is, if the input allowable area is larger than the input area of the reference size, the process proceeds to SB7. On the other hand, if the determination at SB3 is negative, the operation proceeds to SB4.

  In SB4, the input area is reduced from the reference size so as to be within the input allowable area. In the reduction, if the non-input display area is included in the read display content, the input area is reduced outside the non-input display area. In SB4, the size of the input area is not yet determined.

  In SB5, it is determined whether or not the input area reduced in SB4 is smaller than the minimum size. For example, when there are a plurality of input areas included in the display content read in SA1 of FIG. 17, the reduced input area may be smaller than the minimum size. If the determination of SB5 is affirmed, that is, if the input area is smaller than the minimum size, the process proceeds to SB6. On the other hand, if the determination at SB5 is negative, the size of the input area is determined to be reduced at SB4, and the process proceeds to SB7.

  In SB6, the input area is arranged and determined as much as possible in the input allowable area with the minimum size, for example, instead of the size reduced in SB4. At this time, since an input area that cannot be arranged is generated, display settings are made such that the input area that has not been arranged and the input area that has been arranged can be exchanged with each other. Specifically, in addition to the input area arranged in the minimum size, the rearrangement button area is also arranged in the input allowable area (see FIG. 13). When the non-input display area is included in the read display content, the non-input display area is secured within the range of the image display surface 18, and the range of the non-input display area is set. The input area is arranged outside. The same applies to SB7 described later.

  In SB7, the input area is arranged and determined in the input allowable area. In this SB7, unlike the SB6, the rearrangement button area is not arranged. Specifically, in this SB7, when the determination in SB3 is affirmed to reach SB7, the size of the input area is not reduced but remains the reference size, while the determination in SB5. Is negative and the process reaches SB7, the size of the input area is reduced by SB4. Note that SB4 to SB7 correspond to the input area determining means 106.

  Returning to FIG. 17, in SA4 corresponding to the screen display means 108, an image corresponding to the input area determined in SB6 or SB7 of FIG. Further, if the non-input display area is included in the display content read in SA1, an image corresponding to the non-input display area is displayed on the display device 14 together with an image corresponding to the input area. The

  In SA5, it is determined whether or not the use of the image display device 10 is finished. For example, when an operation to turn off the power of the image display device 10 is performed, the use of the image display device 10 ends. When the determination of SA5 is affirmed, that is, when the use of the image display device 10 is finished, this flowchart is finished. On the other hand, if the determination at SA5 is negative, the operation proceeds to SA6.

  In SA6 corresponding to the display content update determination means 102, it is determined whether or not the display content displayed on the display device 14 is updated. If the determination in SA6 is affirmative, that is, if the display content is updated, the process proceeds to SA1. On the other hand, if the determination at SA6 is negative, the operation proceeds to SA7.

  In SA7 corresponding to the screen angle detecting means 100, it is determined from the signal of the screen angle sensor 48 whether or not the screen angle θg has been changed. If the determination of SA7 is affirmative, that is, if the screen angle θg is changed, the process proceeds to SA2. On the other hand, if the determination at SA7 is negative, the operation goes to SA5.

  According to the present embodiment, the screen angle detection unit 100 detects the screen angle θg, and the input region determination unit 106 determines the input allowable region based on the screen angle θg detected by the screen angle detection unit 100. At the same time, the input area is determined within the input allowable area. Therefore, the contact location by the stylus pen (input operator) 28 on the image display surface 18 is limited according to the screen angle θg, and it is possible to prevent the posture of the image display device 10 from being changed by the input operation on the touch panel 12. Is possible. As a result, for example, an erroneous input due to a change in posture of the image display device 10 is less likely to occur.

In addition, according to the present embodiment, the input area determining means 106 increases the upper end position of the input area as the screen angle θg is smaller with the predetermined lower limit position (second height H _X ) being the lower limit. Accordingly, since the posture change of the image display device 10 due to the input operation on the touch panel 12 is less likely to occur as the screen angle θg is smaller, the input region is secured widely while suppressing the posture change. 12 can be easily performed. In addition, since the lower limit position (second height H _X ) is determined, it is possible to avoid the input area from becoming too narrow when performing an input operation on the touch panel 12.

  Further, according to the present embodiment, the input area determination means 106 determines the upper end position of the input allowable area on the image display surface 18 when the screen angle θg is equal to or smaller than the predetermined screen angle determination value θ1g. The upper end position (the position of the upper end 32). Therefore, when the screen angle θg is reduced, for example, when the input operation on the touch panel 12 is performed, any change in the posture of the image display device 10 is unlikely to occur regardless of the contact point of the stylus pen 28 on the image display surface 18. In this case, the input area is secured as wide as possible. As a result, the operability at the time of input operation on the touch panel 12 can be improved.

Further, according to the present embodiment, the touch panel support unit 22 supports the touch panel 12 by being connected to the main body unit 20 including the touch panel 12 at an angle corresponding to the screen angle θg. The means 106 sets the upper end position of the input allowable area to a height H _X or more indicated by the connection part 42 of the main body part 20 with the touch panel support part 22 at the maximum within the predetermined adjustment range of the screen angle θg. Set. Therefore, it is possible to moderately suppress the posture of the image display device 10 from being changed by an input operation on the touch panel 12.

Further, according to this embodiment, input area determination unit 106, the higher of the second height H _X a predetermined first height H _P is set high enough the screen angle θg is less It is set as the upper end position of the input allowable area. For example, the input area determination unit 106 obtains a contact point (support point) where the tip (the other end 44) of the touch panel support unit 22 far from the touch panel 12 contacts the placement surface 8, and displays an image passing through the contact point. the intersection P01 (see FIG. 11) the height indicating the normal of the surface 18 and the image display surface 18 and the first height H _P. Therefore, by detecting the screen angle θg, the posture of the image display device 10 is changed by the input operation on the touch panel 12 while avoiding the reduction of the input area so that the input operation on the touch panel 12 becomes difficult. Can be suppressed.

  Subsequently, another embodiment of the present invention will be described. In the following description, parts common to the embodiments are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, the input area is determined by the CPU 80 of the image display device 10. However, in this embodiment, the server 200 is connected to the image display device 10 so as to be able to communicate with each other. 200 determines the input area and causes the display device 14 of the image display device 10 to display an image corresponding to the input area. Hereinafter, differences from the first embodiment will be mainly described.

  FIG. 19 is a diagram showing an outline of the image display device control system 198 of the present invention. In FIG. 19, an image display device control system 198 communicates information by connecting the image display device 10 corresponding to a terminal device (terminal) of the image display device control system 198 and the image display device 10 through a communication cable 202, for example. The server 200 is configured to be enabled. The server 200 includes, for example, a so-called microcomputer having a CPU, a RAM, a ROM, an input / output interface, and the like. The CPU of the server 200 is stored in the ROM in advance using the temporary storage function of the RAM. Necessary calculations are performed by performing signal processing according to the program.

  FIG. 20 is a functional block diagram for explaining the main part of the control function provided in the server 200. FIG. 21 is a functional block diagram for explaining the main part of the control function provided in the image display device 10 of the present embodiment.

  As shown in FIGS. 20 and 21, the image display device 10 includes the screen angle detection unit 100, the display content update determination unit 102, and the screen display unit 108 described in the first embodiment. A content reading unit 104 and an input area determining unit 106 are provided. Further, the image display device 10 includes a communication interface 204 for performing information communication with the server 200 connected by the communication cable 202, and the server 200 is connected to the image display device 10 connected by the communication cable 202. A communication interface 206 for performing information communication is provided.

  The screen angle detection unit 100, the display content update determination unit 102, the screen display unit 108, the display content reading unit 104, and the input area determination unit 106 all have the same functions as those of the first embodiment. The input area is determined in the same manner as described above, but how the input area is determined is specifically described with reference to FIGS. 22 to 25, taking the case where the image display device 10 functions as a browser as an example. explain.

  22 to 25, the image display apparatus 10 receives that there are two links from the server 200, and receives from the server 200 the character input area that is one stylus input area, two link areas, and the server 200. For example, the display content displayed on the display device 14 includes the browser display area, which is the non-input display area in which the information such as the displayed characters is displayed, and the input determined at each screen angle θg. It is the figure which showed the specific example of the area | region. The character input area and the link area are a kind of the input area. The link area is an area for displaying characters, images, and the like indicating a link destination, and switching to display contents according to the information of the link destination by contact of the stylus pen 28 in the link area.

22 to 25 correspond to FIGS. 13 to 16 of the first embodiment, and similarly to FIGS. 13 to 16, the screen angle θg decreases in order from FIGS. 22 to 25. . 22 to 25, the broken line L01 indicates the first height H _P (see FIG. 11), and the solid line L02 indicates the second height H _X (see FIG. 12). “LK1, LK2” indicates the link area, “A1in” indicates the character input area, “A2br” indicates the browser display area, and “BNc” indicates the first embodiment. Similarly, the rearrangement button area is shown. 22 to 25, the browser display area is the same in any figure. The upper end position of the text input area of the reference size is lower than the second height H _X, the character input area is not reduced and remains the reference size, it is the same in either FIG. Therefore, the determination of the link area will be described below. 22 to 25, (a) is a left side view as viewed from the left horizontal direction in (b).

In the case shown in FIG. 22, the second height H _X (solid line L02) is higher than the first height H _P (broken line L01), as in FIG. 13 of the first embodiment. The height H _X is the upper end position of the input allowable area. When the input area is reduced so that the input areas (link areas LK1, LK2) are within the input allowable area, the size is smaller than the minimum size set in advance for the link areas LK1, LK2. The link area LK1 is reduced to the minimum size, for example, and is arranged in the input allowable area. At the same time, the rearrangement button area BNc is also arranged in the input allowable area.

In the case shown in FIG. 23, the input allowable area is larger than the case shown in FIG. 22, and the first height H _P (broken line L01) is the second height as in FIG. 14 of the first embodiment. is higher than the H _X (solid line L02), the first height H _P is the upper end position of the input allowable region. The input areas (link areas LK1, LK2) are arranged by being reduced from the reference size so as to be within the input allowable area. In the case shown in FIG. 23, even if the input area is reduced so that the input areas (link areas LK1, LK2) fall within the input allowable area, the link areas LK1, LK2 are smaller than the minimum size. Must not. Therefore, the rearrangement button area BNc is not arranged in the input allowable area.

In the case shown in FIG. 24, the input allowable region is enlarged compared to the case shown in FIG. 23, and the first height H _P (broken line L01) is the second height as in FIG. 15 of the first embodiment. is higher than the H _X (solid line L02), the first height H _P is the upper end position of the input allowable region. Even if the link areas LK1 and LK2 are arranged within the allowable input area with the respective reference sizes, the link areas LK1 and LK2 fall within the allowable input area. Arranged in size.

  In the case shown in FIG. 25, the screen angle θg is smaller than in the case shown in FIG. 24, and the screen angle θg is equal to or less than the screen angle determination value θ1g as in FIG. Therefore, the input allowable area is the maximum image display range of the display device 14. Accordingly, the link areas LK1 and LK2 are not reduced by the input allowable area, and are arranged within the range (maximum image display range) of the image display surface 18 with the respective reference sizes.

  FIG. 26 is a flowchart for explaining the main part of the control operation of the image display device control system 198, that is, the control operation in which the display content displayed on the image display device 10 is updated according to the screen angle θg of the touch panel 12. It is. FIG. 27 is a flowchart for illustrating a control operation executed in SC10 of FIG. 26 and 27 will be described as an example where the image display device 10 functions as a browser.

  For example, when the power of the image display device 10 that is a terminal device is turned on, SC1 is executed. In SC1, a dedicated browser for communication connection with the server 200 is activated. Then, a predetermined display area within the range of the image display surface 18 is acquired. For example, the link area or the like is secured as the display area, and the server 200 is accessed by contacting the stylus pen 28 in the link area.

  In SC2, the screen angle θg is detected from the signal of the screen angle sensor 48 as in SB1 of FIG. This SC2 corresponds to the screen angle detecting means 100.

  In SC3 corresponding to the communication interface 204 or the like, the server 200 is accessed. That is, information is transmitted from the image display device 10 to the server 200. For example, when the stylus pen 28 is touched in the link area, information specifying a link destination corresponding to the link area is transmitted to the server 200. Further, the screen angle θg detected at SC2 is transmitted to the server 200.

  In SC4, it is determined whether or not to terminate the server 200. For example, when an operation for turning off the power of the server 200 is performed, the server 200 ends. If the determination in SC4 is affirmative, the server 200 is turned off and ends. On the other hand, if the determination in SC4 is negative, that is, if the server 200 is not terminated, the process proceeds to SC5.

  In SC5, it is determined whether or not there is an access from the image display device (terminal) 10. In other words, it is determined whether or not information is transmitted from the image display device 10. If the determination in SC5 is affirmative, that is, if there is an access from the image display device (terminal) 10, the process proceeds to SC6. On the other hand, if the determination of SC5 is negative, the process proceeds to SC4.

  In SC6, information transmitted from the image display device 10 to the server 200 is read.

  In SC7 corresponding to the display content reading means 104, information (output information) to be output to the image display device (terminal) 10 is set. For example, if the information read in SC6 is information designating a link destination, display contents (output information) to be displayed on the display device 14 corresponding to the link destination are read. That is, in SC7, the same thing as SA1 of FIG. 17 is performed.

  In SC8 corresponding to the input area presence determining means 110, it is the same as SA2 in FIG. 17, and the input area is displayed on the image display surface 18 from the output information to the image display device (terminal) 10 set in SC7. It is determined whether or not there exists. That is, it is determined whether the input area is included in the output information. If the determination in SC8 is affirmative, that is, if the input area exists, the process proceeds to SC9. On the other hand, if the determination in SC8 is negative, the process proceeds to SC11.

  In SC9 corresponding to the input area determining means 106, in order to arrange the input area outside the browser display area, the browser display area is secured within the range of the image display surface 18 based on the output information of the SC7. The

  In SC10, the arrangement and size of the input area on the image display surface 18 are changed according to the screen angle θg. Specifically, the flowchart of FIG. 27 is executed. Note that SD1 to SD6 in FIG. 27 are the same as SB2 to SB7 in FIG. Therefore, the description of SD1 to SD6 is omitted.

  In the SC 11 corresponding to the communication interface 206 or the like, information is transmitted to the image display device (terminal) 10. For example, information (position, size, display image, etc.) related to the input area determined in SC10 and information related to the browser display area included in the display content (output information) read in SC7 ( The position, size, display image, etc.) are transmitted to the image display device (terminal) 10.

  In SC12, it is determined whether or not information is transmitted from the server 200 within a predetermined time after the access to the server 200 is executed in SC3. The predetermined time is an experimentally determined time for determining a failure in the communication path between the server 200 and the image display device 10. If the determination in SC12 is affirmative, that is, if information is transmitted from the server 200, the process proceeds to SC14. On the other hand, if the determination at SC12 is negative, it is considered that the communication path has failed, and therefore, at SC13, a corresponding action is taken. For example, a message indicating a communication error is displayed on the display device 14.

  In the SC 14 corresponding to the screen display means 108, an image included in the information is displayed on the display device 14 in accordance with the information transmitted from the server 200 in the SC 11. For example, an image corresponding to the input area determined in SD5 or SD6 in FIG. If the browser display area (non-input display area) is included in the information, an image corresponding to the browser display area is displayed on the display device 14 together with an image corresponding to the input area. That is, in SC14, the same thing as SA4 of FIG. 17 is performed.

  In SC15, it is determined whether or not to end use of the image display device 10, that is, whether or not to end the browser function. For example, when an operation to turn off the power of the image display device 10 is performed, the use of the image display device 10 ends. When the determination of SC15 is affirmed, that is, when the use of the image display device 10 is finished, the image display device 10 is turned off and finished. On the other hand, if the determination of SC15 is negative, the process proceeds to SC16.

  In SC16 corresponding to the screen angle detecting means 100, it is determined whether or not the screen angle θg has been changed (adjusted) as in SA7 of FIG. If the determination in SC16 is affirmative, that is, if the screen angle θg is changed, the process proceeds to SC2. On the other hand, if the determination of SC16 is negative, the process proceeds to SC17.

  In SC17 corresponding to the display content update determination means 102, it is determined whether or not the display content displayed on the display device 14 is updated, similarly to SA6 in FIG. That is, since the image display device 10 functions as a browser, it is determined whether or not the content of the browser is updated. If the determination in SC17 is affirmative, that is, if the display content is updated, the process proceeds to SC3. On the other hand, if the determination of SC17 is negative, the process proceeds to SC15.

  According to the present embodiment, the image display device 10 including the touch panel 12 and the touch panel support unit 22 includes the screen angle detection unit 100 that detects the screen angle θg, and the server 200 includes the screen angle detection unit. The input allowable area is determined based on the screen angle θg detected by 100, and has an input area determining means for determining the input area within the input allowable area, and based on the determined input area Since the image is displayed on the touch panel 12 (display device 14), the same effect as in the first embodiment is obtained.

  As mentioned above, although the suitable Example of this invention was described in detail based on drawing, this invention is not limited to this, Furthermore, it implements in another aspect.

  For example, in the above-described first embodiment, the menu button 26 is provided in the main body unit 20, but the menu button 26 may be omitted.

  In the flowcharts of the first and second embodiments (FIGS. 17, 18, 26, and 27), when the screen angle θg is changed, the display content displayed on the display device 14 is updated. In this case, the input area is determined based on the screen angle θg. For example, a control in which the input area is sequentially determined can be considered.

  In the first and second embodiments, the stylus pen 28 is shown as an input operator for the touch panel 12. However, the input operator may be a finger of the user.

  Further, in the touch panel 12 of the first and second embodiments described above, contact of the stylus pen 28 with the image display surface 18 is detected. Depending on the contact detection method, the stylus pen 28 contacts the image display surface 18. In some cases, it is recognized that the stylus pen 28 has come into contact with the image display surface 18 when approaching just before the touch, so in such a case, just before the stylus pen 28 contacts the image display surface 18. Is included in the contact of the stylus pen 28 with the image display surface 18.

8: Placement surface 10: Image display device 12: Touch panel 18: Image display surface 20: Body portion 22: Touch panel support portion 28: Stylus pen (input operator)
42: Connection unit 71: First touch panel support unit (touch panel support unit)
78: 2nd touch panel support part (touch panel support part)
80: CPU (control device)
100: Screen angle detecting means 106: Input area determining means 198: Image display device control system 200: Server

Claims (5)

A touch panel that displays an image and detects that an input operator operated by a user touches the image display surface, and fixes a screen angle formed by the image display surface with respect to the placement surface and supports the touch panel A control device for an image display device including a touch panel support,
Screen angle detecting means for detecting the screen angle;
Based on the screen angle detected by the screen angle detection means, an input allowable area capable of setting an input area for receiving input by the input operator within the range of the image display surface is determined, and the input area is An image display device control apparatus comprising: an input area determining means for determining within an input allowable area. 2. The control device for an image display device according to claim 1, wherein the input area determination unit increases the upper end position of the input area with a predetermined lower limit position as a lower limit as the screen angle decreases. 2. The input area determining means, when the screen angle is equal to or less than a predetermined screen angle determination value, sets the upper end position of the input allowable area as the upper end position of the image display surface. Or the control apparatus of the image display apparatus of 2. The touch panel support unit is connected to a main body unit including the touch panel at an angle according to the screen angle, and supports the touch panel by contacting the mounting surface.
The input area determination means sets the upper end position of the input allowable area to be equal to or higher than a height indicated by a connection portion of the main body portion with the touch panel support portion when the screen angle is maximum. 4. The control device for an image display device according to any one of items 1 to 3. A touch panel that displays an image and detects that an input operator operated by a user touches the image display surface, and fixes a screen angle formed by the image display surface with respect to the placement surface and supports the touch panel An image display device control system for determining an input area for receiving an input by the input operator within the range of the image display surface for an image display device having a touch panel support unit,
The image display device has a screen angle detection means for detecting the screen angle,
And an input area determining means for determining an input allowable area in which the input area can be set based on the screen angle detected by the screen angle detecting means and determining the input area within the input allowable area; An image display device control system comprising: a server that displays an image based on the determined input area on the touch panel.

Images